docs: def get_top_hubs(graph, *, n: Optional[int] = 15) -> List[Tuple[BaseEntity, int]]:
      """Get the top hubs in the graph by BEL.
  
      :param pybel.BELGraph graph: A BEL graph
      :param n: The number of top hubs to return. If None, returns all nodes
      """
      return Counter(dict(graph.degree())).most_common(n=n)